Home / 99,961.32-149,867.90-60,509.10

Finding the Fourth Proportional to 99,961.32, 149,867.90 and 60,509.10

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Solution

The fourth proportional to 99,961.32, 149,867.90 and 60,509.10 is: 90,718.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,961.32 : 149,867.90 = 60,509.10 : x
  2. Step 2: Convert to fraction form
    99,961.32/149,867.90 = 60,509.10/x
  3. Step 3: Cross multiply
    99,961.32x = 149,867.90 × 60,509.10
  4. Step 4: Simplify right side
    99,961.32x = 9,068,371,747.89
  5. Step 5: Solve for x
    x = 9,068,371,747.89/99,961.32
  6. Step 6: Final answer
    x = 90,718.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.